- All sections
- C - Chemistrymetallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag woolsupplementary processes in the manufacture or shaping of glass, or of mineral or slag wool
- C03B 5/235 - Heating the glass
Patent holdings for IPC class C03B 5/235
Total number of patents in this class: 693
10-year publication summary
|
49
|
47
|
60
|
42
|
64
|
48
|
46
|
45
|
43
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Owens-Brockway Glass Container Inc. | 799 |
95 |
| Johns Manville | 922 |
87 |
| Corning Incorporated | 10504 |
45 |
| Saint-Gobain Isover | 682 |
42 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4122 |
41 |
| AGC Glass Europe | 1183 |
37 |
| Nippon Electric Glass Co., Ltd. | 2558 |
30 |
| Praxair Technology, Inc. | 1215 |
27 |
| Knauf Insulation | 48 |
15 |
| Knauf Insulation SPRL | 169 |
15 |
| Rockwool A/S | 842 |
15 |
| Agc, Inc. | 5577 |
13 |
| Air Products and Chemicals, Inc. | 1469 |
12 |
| Saint-Gobain Glass France | 3238 |
11 |
| Asahi Glass Company, Limited | 2606 |
10 |
| SCHOTT AG | 1748 |
9 |
| ROCKWOOL International A/S | 276 |
9 |
| Owens Corning Intellectual Capital, LLC | 1732 |
7 |
| Caihong Display Devices Co.,Ltd. | 77 |
7 |
| Vitro Flat Glass LLC | 516 |
6 |
| Other owners | 160 |